fix(camera,sms,dwm): fix CAMSS AXI frame-boundary stop, SMS draft button label, and post-reboot softkey responsiveness

src/dwm-plugins/camera_plugin.cpp

@@ -161,9 +161,7 @@ int runCameraApp(int argc, char** argv) {
   std::string daemonPidPath = getPluginDaemonPidPath("camera");
   std::string activePidPath = getRuntimeFile("xcamera.pid");
 
-  int existingDaemon = readIntFile(daemonPidPath, -1);
-  if (existingDaemon > 0 && existingDaemon != static_cast<int>(::getpid()) &&
-      ::kill(existingDaemon, 0) == 0) {
+  if (isPluginDaemonAlive("camera")) {
     if (!isPreload) {
       sendPluginCommand("camera",
                         initArg.empty() ? "OPEN" : ("OPEN " + initArg));
@@ -422,6 +420,7 @@ int runCameraApp(int argc, char** argv) {
           {
             std::lock_guard<std::mutex> lk(frameMutex);
             vfFront.swap(vfBack);
+            xImgVf->data = reinterpret_cast<char*>(vfFront.data());
             cameraReady = true;
             cameraStatus.clear();
             if (!savedName.empty()) {
@@ -434,8 +433,12 @@ int runCameraApp(int argc, char** argv) {
             char c = 'F';
             (void)::write(writePipe, &c, 1);
           }
+          for (int s = 0; s < 5 && !vfShouldStop && gRunning && !snapRequested.load(); ++s) {
+            struct timespec ts {0, 20 * 1000 * 1000};
+            nanosleep(&ts, nullptr);
+          }
         } else {
-          struct timespec ts {0, 30 * 1000 * 1000};
+          struct timespec ts {0, 50 * 1000 * 1000};
           nanosleep(&ts, nullptr);
         }
       }

src/dwm-plugins/contacts_plugin.cpp

@@ -72,9 +72,7 @@ int runContactsApp(int argc, char** argv) {
   std::string daemonPidPath = getPluginDaemonPidPath("contacts");
   std::string activePidPath = getRuntimeFile("xcontacts.pid");
 
-  int existingDaemon = readIntFile(daemonPidPath, -1);
-  if (existingDaemon > 0 && existingDaemon != static_cast<int>(::getpid()) &&
-      ::kill(existingDaemon, 0) == 0) {
+  if (isPluginDaemonAlive("contacts")) {
     if (!isPreload) {
       sendPluginCommand("contacts",
                         initArg.empty() ? "OPEN" : ("OPEN " + initArg));

src/dwm-plugins/files_plugin.cpp

@@ -208,9 +208,7 @@ int runFilesApp(int argc, char** argv) {
   std::string daemonPidPath = getPluginDaemonPidPath("files");
   std::string activePidPath = getRuntimeFile("xfiles.pid");
 
-  int existingDaemon = readIntFile(daemonPidPath, -1);
-  if (existingDaemon > 0 && existingDaemon != static_cast<int>(::getpid()) &&
-      ::kill(existingDaemon, 0) == 0) {
+  if (isPluginDaemonAlive("files")) {
     if (!isPreload) {
       sendPluginCommand("files", initDir.empty() ? "OPEN" : ("OPEN " + initDir));
     }

src/dwm-plugins/phone_data.h

@@ -125,11 +125,40 @@ inline std::string getPluginDaemonPidPath(const char* name) {
   return std::string("/tmp/dwm_plugin_") + name + ".pid";
 }
 
-inline bool sendPluginCommand(const char* name, const std::string& cmdLine) {
+inline bool isPluginDaemonAlive(const char* name) {
+  if (!name || !name[0]) {
+    return false;
+  }
   int pid = readIntFile(getPluginDaemonPidPath(name), -1);
   if (pid <= 0 || pid == static_cast<int>(::getpid()) || ::kill(pid, 0) != 0) {
     return false;
   }
+  char cmdPath[64];
+  std::snprintf(cmdPath, sizeof(cmdPath), "/proc/%d/cmdline", pid);
+  int fd = ::open(cmdPath, O_RDONLY | O_CLOEXEC);
+  if (fd < 0) {
+    return false;
+  }
+  char buf[256];
+  ssize_t n = ::read(fd, buf, sizeof(buf) - 1);
+  ::close(fd);
+  if (n <= 0) {
+    return false;
+  }
+  for (ssize_t i = 0; i < n; ++i) {
+    if (buf[i] == '\0') {
+      buf[i] = ' ';
+    }
+  }
+  buf[n] = '\0';
+  return (std::strstr(buf, "dwm-plugin") != nullptr &&
+          std::strstr(buf, name) != nullptr);
+}
+
+inline bool sendPluginCommand(const char* name, const std::string& cmdLine) {
+  if (!isPluginDaemonAlive(name)) {
+    return false;
+  }
   std::string fifoPath = getPluginFifoPath(name);
   int fd = ::open(fifoPath.c_str(), O_WRONLY | O_NONBLOCK | O_CLOEXEC);
   if (fd < 0) {

src/dwm-plugins/sms_plugin.cpp

@@ -94,9 +94,7 @@ int runSmsApp(int argc, char** argv) {
   std::string daemonPidPath = getPluginDaemonPidPath("sms");
   std::string activePidPath = getRuntimeFile("xsms.pid");
 
-  int existingDaemon = readIntFile(daemonPidPath, -1);
-  if (existingDaemon > 0 && existingDaemon != static_cast<int>(::getpid()) &&
-      ::kill(existingDaemon, 0) == 0) {
+  if (isPluginDaemonAlive("sms")) {
     if (!isPreload) {
       sendPluginCommand("sms", initArg.empty() ? "OPEN" : ("OPEN " + initArg));
     }
@@ -767,11 +765,16 @@ int runSmsApp(int argc, char** argv) {
       drawPango(layoutMain, &colYellow, 146, 234, 30, "Draft", 84);
 
       if (composeField == 0) {
-        drawSoftkeyBar("Contacts", "Next",
+        drawSoftkeyBar("Contacts",
+                       composeRecipient.empty() ? "Contacts" : "Next",
                        composeRecipient.empty() ? "Cancel" : "Clear");
-      } else {
+      } else if (composeField == 1) {
         drawSoftkeyBar("Send", "Send",
                        composeText.empty() ? "Cancel" : "Del");
+      } else if (composeField == 2) {
+        drawSoftkeyBar("Send", "Send", "Cancel");
+      } else {
+        drawSoftkeyBar("Send", "Draft", "Cancel");
       }
 
     } else if (mode == ViewMode::PickContact) {